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Streams using NumPy Arrays — python-sounddevice, version 0.4.4
https://python-sounddevice.readthedocs.io/en/0.4.4/api/streams.html#:~:text=When%20a%20stream%20is%20running%2C%20PortAudio%20calls%20the,stream%20will%20be%20opened%20in%20%E2%80%9Cblocking%20read%2Fwrite%E2%80%9D%20mode.
PyAudio: PortAudio v19 Python Bindings
https://people.csail.mit.edu/hubert/pyaudio/
PyAudio def callback (in_data, frame_count, time_info, status): return (in_data, pyaudio. paContinue) stream = p. open (format = p. get_format_from_width (WIDTH), channels = CHANNELS, rate = RATE, input = True, output = True, stream_callback = callback) stream. start_stream while stream. is_active (): time. sleep (0.1) stream. stop_stream stream. close p. …
Python - pyaudio - DevTut
https://devtut.github.io/python/pyaudio.html
In callback mode, PyAudio will call a specified callback function (2) whenever it needs new audio data (to play) and/or when there is new (recorded) audio data available. Note that PyAudio calls the callback function in a separate thread. The function has the following signature callback (<input_data>, <frame_count>, <time_info>, <status_flag>) and must return a tuple containing …
Python Pyaudio Tutorial | Pyaudio Module In Python ...
https://codingcompiler.com/pyaudio/
instantiate PyAudio (1) p = pyaudio.PyAudio () define callback (2) def callback (in_data, frame_count, time_info, status): data = wf.readframes (frame_count) return (data, pyaudio.paContinue) open stream using callback (3) stream = p.open (format=p.get_format_from_width (wf.getsampwidth ()), channels=wf.getnchannels (), …
python - PyAudio callback being called only once - Stack ...
https://stackoverflow.com/questions/52415883/pyaudio-callback-being-called-only-once
I think you don't need those threads (at least the audio thread) because PyAudio/PortAudio creates a new OS thread itself to call the callback() in. Just read the audio files and set up PyAudio in the main thread until the call to start_stream(). After that, the callback() is already running in the background.
PyAudio Documentation — PyAudio 0.2.11 documentation
https://people.csail.mit.edu/hubert/pyaudio/docs/
PyAudio # define callback (2) def callback (in_data, frame_count, time_info, status): data = wf. readframes (frame_count) return (data, pyaudio. paContinue) # open stream using callback (3) stream = p. open (format = p. get_format_from_width (wf. getsampwidth ()), channels = wf. getnchannels (), rate = wf. getframerate (), output = True, stream_callback = callback) # start …
Python Language Tutorial - pyaudio - SO Documentation
https://sodocumentation.net/python/topic/10627/pyaudio
In callback mode, PyAudio will call a specified callback function (2) whenever it needs new audio data (to play) and/or when there is new (recorded) audio data available. Note that PyAudio calls the callback function in a separate thread.
PortAudio: Writing a Callback Function
http://files.portaudio.com/docs/v19-doxydocs/writing_a_callback.html
In addition, it is not safe to call any PortAudio API functions in the callback except as explicitly permitted in the documentation. Your callback function must return an int and accept the exact parameters specified in this typedef: typedef int PaStreamCallback ( const void *input, void *output, unsigned long frameCount,
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